The diagram shows the structural and functional unit of the lungs.
(a) Identify structure Z. Answer: Structure Z is the alveolus. (b) Name the gases X and Y. X: Oxygen (Oâ‚‚) Y: Carbon dioxide (COâ‚‚) (c) What is the name of the blood leaving at point E? The blood leaving at point E is oxygenated blood. Related Questions: Name the structure through which the exchange of … Read more